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CEL-62X SERIES SOUND LEVEL METER
CASELLA CEL
Regent House,
Wolseley Road,
Kempston,
Bedford,
MK42 7JY, U.K.
Phone: +44 (0) 1234 844 100
Fax: +44 (0) 1234 841 490
E-mail: info@casellacel.com
Web: www.casellameasurement.com
April 2010
HB3340-02
OPERATOR'S MANUAL
CASELLA USA
17 Old Nashua Road # 15
Amherst, NH 03031-2839,
U.S.A.
Toll Free: +1 (800) 366 2966
Fax: +1 (603) 672 8053
E-mail: info@casellaUSA.com
Web: www.casellaUSA.com
CASELLA ESPANA S.A.
Polígono Európolis
Calle C, nº4B
28230 Las Rozas - Madrid
Spain
Phone: + 34 91 640 75 19
Fax: + 34 91 636 01 96
E-mail: online@casella-es.com
Web: www.casella-es.com
CASELLA CHINA（中国）
地址
北京东城区东方广场W1座911室
邮编: 100738
电话: 0086 10 85183141
传真: 0086 10 85183143
电子邮件: info@casellameasurement.cn
网址: www.casellachina.cn
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Related Manuals for CASELLA CEL CEL-62 Series
Summary of Contents for CASELLA CEL CEL-62 Series
- Page 1 CEL-62X SERIES SOUND LEVEL METER HB3340-02 OPERATOR’S MANUAL CASELLA CEL CASELLA USA CASELLA ESPANA S.A. CASELLA CHINA（中国） Regent House, 17 Old Nashua Road # 15 Polígono Európolis 地址 Wolseley Road, Amherst, NH 03031-2839, Calle C, nº4B 北京东城区东方广场W1座911室 Kempston, U.S.A. 28230 Las Rozas - Madrid 邮编: 100738...
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Page 3: Table Of Contents
Calibration ref Level View Memory Results Delete Memory results Run Screens Instrument Calibration Extracting Data System Tools Storage Low and High Level Sound Specifications Servicing and Warranty Arrangements Appendix A - Glossary of Terms Appendix B - Additional information Casella CEL... -
Page 4: Introduction
(1) should be used to cover and protect the microphone at all times. When the instrument is switched ON (3) it will run through its own software initialisation and then default to a Stop mode (Red Bar) screen. Casella CEL... - Page 5 1 – Windshield (covering removable microphone), 2 – Fixed Pre-amplifier, 3 – ON/OFF Key, 4 – Display, 5 – Soft Keys, 6 – Navigation Cursor Keys, 7 – Run/Stop Key. Figure 1 CEL-62X Series Back to Index Casella CEL...
- Page 6 CEL-62X is powered from 12VDC or USB. The auto power off facility is independent of the backlight time settings – see paragraph E – Set Backlight below. Figure 2 Battery Charge Indicator and Battery Installation. Back to Index Casella CEL...
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Page 7: Operation
Stop mode (red bars). Press View (B) to see the Graph screen. Press Menu (A) to access the Menu screen. The instrument is ready to make measurement immediately after the initialisation screens have been displayed (approximately 10 seconds after switch ON). Figure 3 Switch ON the CEL-62X (Sheet 1) Casella CEL... -
Page 8: Setting Screens
This menu allows selection of the parameters to be viewed during a measurement run. Note that regardless of the Measurement View selected, all parameters will be stored simultaneously and can be viewed via a PC. Use the Cursors Keys (C) to navigate to Setup icon (2) and press Select (B). Casella CEL... - Page 9 Fast (F) or Slow (S) do not apply to L measurements. Press the Run/Stop Key (D) to restore defaults. Press Functions (B) to open the Functions screens for the selected ‘User 1 View’. Figure 4 Setting Options (Sheet 1) Casella CEL...
- Page 10 The CEL-621 will have an additional screen to adjust the stored statistical data. Within these setups, L values can be switched on and off as required and one of the L values can be varied to any percentage between 0.1 and 99.9%. Figure 4 Settings Options (Sheet 2) Casella CEL...
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Page 11: Date & Time Screens
Left/Right Cursor Keys (C) to move between the day, month and year. When the correct date has been set, press Save (B). CLOCK SET. The time and date is now set. Press Exit (A) to go back to the Set Clock screen. Figure 5 Set Date and Time Casella CEL... -
Page 12: Set Language
Edit (B). Use the Left/Right Cursor Keys (C) to toggle between the following backlight modes: KEYPRESS- The backlight stays on for a set Duration following any key press. ON- Backlight remains on continuously. If the ON option is selected the Duration setting will be disabled. Casella CEL... - Page 13 Edit (B). The Brightness icon will be highlighted, use the Left/Right Cursor Keys (C) to adjust the brightness. When the Brightness has been set, press Save (B). Press Exit (A) to go back to the Settings screen. Figure 7 Set Backlight (Sheet 3) Casella CEL...
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Page 14: Set Run Duration
Range of duration/integration time is 00:00:01 to 24:00:00 in 1 second steps. When the Duration has been set, press Save (B). Press Exit (A) to go back to the Settings screen. Figure 8 Run Duration (Sheet 2) Casella CEL... -
Page 15: Calibration Ref Level
The first digit can be selected 0 or 1 only, other digits can be 0-9. Use the Up/Down Cursor Keys (C) to adjust the digits and the Left/Right Cursor Keys (C) to move between digits. Press Save (B). Press Exit (A) to go back to the Settings screen. Figure 9 Calibration Reference Level Casella CEL... -
Page 16: View Memory Results
Press Exit (A) to leave the Results or View (B) to cycle the Results screens again. Note: On CEL-62XC models either 1/1 octave values or 1/3 octave values will be displayed dependent on the setup at the time of measurement. Casella CEL... -
Page 17: Delete Memory Results
Select (B). The next screen asks for final confirmation to permanently delete the Run. Press the Tick (A) to confirm. The Run will be permanently deleted. If unsure, press the Cross (B) to go back the Memory Results list. Figure 11 Delete Memory Result Casella CEL... -
Page 18: Run Screens
CEL-62XA (Refer to Figure 13). The broadband values can be viewed as a bar graph on the Main screen, or as a graphical time history on the Graph screen. Pressing View (B) toggles between Graph and Main screens. Figure 13 CEL-62XA Run Screens Casella CEL... -
Page 19: Instrument Calibration
This identifies the change since the previous calibration. Remove the acoustic calibrator. Press Exit (A) to go back to the Stop screen. Press and hold the acoustic calibrator ON/OFF Key to switch the calibrator off. Figure 15 Instrument Calibration Casella CEL... -
Page 20: Extracting Data
An Explorer window will open on the PC to show the files on the instrument. Simply copy the files to your PC as required. Figure 16 Measurement Data Files Casella CEL... -
Page 21: System Tools
Keep the Instrument dry, in a dust free environment, and away from heat generating and ozone generating sources. If the Instrument is not going to be used for a week or longer, remove the batteries from the battery compartments. Back to Index Casella CEL... -
Page 22: Low And High Level Sound
If the data collected during the run is viewed on the CEL-62X, or downloaded to a PC, then an overload will be reported in the data. Refer to sections F,H & J to set run durations, memory results and run screens. Casella CEL... -
Page 23: Specifications
101.325kPa atmospheric pressure. Nominal reference level = 114.0dB at 1kHz OPERATING ENVIRONMENTAL CONDITIONS Humidity: 5 to 90%RH in the absence of condensation. Temperature range: -10 to +50 C (Class 1), 0 to +40 C (Class 2) Pressure: 65 to 108kPa Casella CEL... - Page 24 Less than ±0.5dB change from 74dBA 925Hz reference level when subjected to 160A/m AC magnetic field at 50 and 60Hz. TRIPOD MOUNTING Socket to mount on standard 1/4" (Whitworth) camera tripod thread. DISPLAY 320x240 Transmissive Colour TFT. Update period 0.5 seconds. MEMORY Micro SD 1GB Non-volatile internal. Casella CEL...
- Page 25 Note: DC power input ground should be kept isolated from any signal ground. Power Socket Audio Jack Socket Socket Figure 18 Connectivity PHYSICAL CHARACTERISTICS Dimensions: (WxHxD) 71.5x 230.0x 31.0mm for instrument including microphone and preamplifier. Weight: <310g including batteries. Casella CEL...
- Page 26 NA NA NA √ √ LTM3 NA NA √ √ LTM5 NA NA based on selectable threshold 70- √ √ L(w)AVG AVG, integrating 90dB, Q5 or Q4 and Slow weighting. only, L √ √ LC-LA NA NA NA required Casella CEL...
- Page 27 ASmax AFmax AFmax AF10 AF10 AF10 AF10 AF50 AF50 AF90 AF50 AF90 AF90 AF90 AF95 AF95 AF95 AF99 AF99 AF99 4 Ln% values are fixed, 1 is variable in User 1 and User 2 setups. Back to Index Casella CEL...
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Page 28: Servicing And Warranty Arrangements
To obtain repair under warranty, the instrument should be packed and returned in it’s original packing or an equivalent either to CASELLA CEL’s local agent, or in the case of U.K. domestic sales, to the CASELLA CEL Service Department at Bedford. Please... -
Page 29: Appendix A - Glossary Of Terms
GLOSSARY OF TERMS This Appendix gives a glossary of the acoustic terminology used in this manual. For further information, please contact Casella CEL or your local representative. A, C and Z WEIGHTING (WEIGHTED) A standard weighting of the audible frequencies designed to approximate the response of the human ear to noise. - Page 30 The sound pressure level. This is the basic physical measure of noise, and is normally expressed in dB. THRESHOLD A threshold level below which sound is excluded from calculation. OSHA measurements use an 80 dB threshold. Back to Index Casella CEL...
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Page 31: Appendix B - Additional Information
Kjear UA0033 probability Calibrator Kjear 4226 Actuator Electrostatic (k=2) Calibrator Actuator 31.5 -0.1 -0.1 -0.1 -0.1 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 1000 2000 4000 8000 12500 16000 Casella CEL... - Page 32 3 volts to ensure no data is measured that does not meet the requirements of IEC 61672. 12VDC supply range is 9 to 14 volts. USB supply range is 4.5 to 5.5 volts. Casella CEL...
- Page 33 The CEL-62X has slightly higher susceptibility with the Y plane facing the radiating antenna. X is in the direction of the microphone, Z is in the direction of the display, and Y is in the direction side-on to the case. Casella CEL...
- Page 34 Casella CEL-62X with CEL-251 Microphone Free Field response with and without Wind Screen. Nominal Actual 0 Degree 0 Degree Effect of 0 Degree 0 Degree Expanded Frequency Frequency Free Field Free Field Wind Free Field Free Field uncertainty Response Corrections...
- Page 35 -1.44 -2.32 -3.12 -4.75 -4.75 -6.33 -6.14 -7.87 -6.60 -9.13 -7.33 -7.62 Maximum expanded uncertainty of above data with 95% probability (k=2) 500Hz to 1kHz 0.3dB >1kHz to 4kHz 0.5dB >4kHz to 8kHz 1.0dB >8kHz to 12.5kHz 1.5dB Casella CEL...
- Page 36 -2.02 -2.69 -3.45 -4.72 -5.59 -7.47 -6.61 -8.44 -6.05 -10.78 -7.16 -8.12 Maximum expanded uncertainty of above data with 95% probability (k=2) 500Hz to 1kHz 0.3dB >1kHz to 4kHz 0.5dB >4kHz to 8kHz 1.0dB >8kHz to 12.5kHz 1.5dB Casella CEL...
- Page 37 Calibration corrections for the CEL-251 and CEL-252 Microphones. Calibrator Calibration Level Calibration Level IEC 60942 Correction no Wind Correction with Screen Wind Screen Casella CEL-110/1 -0.1dB 0.0dB Type 1 Casella CEL-110/2 -0.1dB 0.0dB Type 2 Bruel & Kjear 4231 -0.1dB 0.0dB...
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